Someone (ma-) is self-interested in a group activity.
Mapākong si marāan, ta pabinglayen nabaw nakayat na a chayi.
Uncle is self-interested, because he does not let the chayi fruit he climbed to get to be divided and distributed.
Someone (mang-) secretly leaves with something, not sharing it with the group.
custom of the Ibatan is to equally divide and share with the group when fishing or hunting together
Mangpākong kaba so rarayay mo, ta ipsok daymo.
Don't secretly leave your companions (without sharing what you got), because they will hate you.